The Doppler approach more frequently used for estimating two components of the velocity vector is based on the use of the “dual beams” associated with either two single-element probes or two sub-apertures of a linear array. With the diffusion of high frame rate (HFR) sequences, these methods have been adapted to the investigation of a planar region of interest (ROI). In this study, we evaluate the feasibility of using multiple 2-D sparse array probes to extend HFR vector Doppler imaging to a 3-D ROI. The results of this work confirm that accurate estimations of the velocity can be obtained. Our results show bias and standard deviation errors below 4.5 % and 13.0 %, respectively, and an achievable rate of 750 volumes per second.
Towards multi-probe high frame rate volumetric vector Doppler imaging: a feasibility study / Mazierli, Daniele; Peralta, Laura; Hajnal, Joseph V; Ramalli, Alessandro; Tortoli, Piero. - ELETTRONICO. - (2022), pp. 1-4. ((Intervento presentato al convegno 2022 IEEE International Ultrasonics Symposium (IUS) [10.1109/IUS54386.2022.9957438].
Towards multi-probe high frame rate volumetric vector Doppler imaging: a feasibility study
Mazierli, Daniele;Ramalli, Alessandro;Tortoli, Piero
2022
Abstract
The Doppler approach more frequently used for estimating two components of the velocity vector is based on the use of the “dual beams” associated with either two single-element probes or two sub-apertures of a linear array. With the diffusion of high frame rate (HFR) sequences, these methods have been adapted to the investigation of a planar region of interest (ROI). In this study, we evaluate the feasibility of using multiple 2-D sparse array probes to extend HFR vector Doppler imaging to a 3-D ROI. The results of this work confirm that accurate estimations of the velocity can be obtained. Our results show bias and standard deviation errors below 4.5 % and 13.0 %, respectively, and an achievable rate of 750 volumes per second.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.